import React, { Component } from 'react';
import PropTypes from 'prop-types';
import { Form, Tabs } from 'antd';
import classNames from 'classnames';
import LoginItem from './LoginItem';
import LoginTab from './LoginTab';
import LoginSubmit from './LoginSubmit';
import styles from './index.less';
import LoginContext from './loginContext';

class Login extends Component {
    static propTypes = {
        className: PropTypes.string,
        defaultActiveKey: PropTypes.string,
        onTabChange: PropTypes.func,
        onSubmit: PropTypes.func
    };

    static defaultProps = {
        className: '',
        defaultActiveKey: '',
        onTabChange: () => {},
        onSubmit: () => {}
    };

    constructor(props) {
        super(props);
        this.state = {
            type: props.defaultActiveKey,
            tabs: [],
            active: {}
        };
    }

    onSwitch = type => {
        this.setState({
            type
        });
        const { onTabChange } = this.props;
        onTabChange(type);
    };

    getContext = () => {
        const { tabs } = this.state;
        const { form } = this.props;
        return {
            tabUtil: {
                addTab: id => {
                    this.setState({
                        tabs: [...tabs, id]
                    });
                },
                removeTab: id => {
                    this.setState({
                        tabs: tabs.filter(currentId => currentId !== id)
                    });
                }
            },
            form,
            updateActive: activeItem => {
                const { type, active } = this.state;
                if (active[type]) {
                    active[type].push(activeItem);
                } else {
                    active[type] = [activeItem];
                }
                this.setState({
                    active
                });
            }
        };
    };

    handleSubmit = e => {
        e.preventDefault();
        const { active, type } = this.state;
        const { form, onSubmit } = this.props;
        const activeFileds = active[type];
        form.validateFields(activeFileds, { force: true }, (err, values) => {
            onSubmit(err, values);
        });
    };

    render() {
        const { className, children } = this.props;
        const { type, tabs } = this.state;
        const TabChildren = [];
        const otherChildren = [];
        React.Children.forEach(children, item => {
            if (!item) {
                return;
            }
            if (item.type.typeName === 'LoginTab') {
                TabChildren.push(item);
            } else {
                otherChildren.push(item);
            }
        });
        return (
            <LoginContext.Provider value={this.getContext()}>
                <div className={classNames(className, styles.login)}>
                    <Form onSubmit={this.handleSubmit}>
                        {tabs.length ? (
                            <React.Fragment>
                                <Tabs
                                    animated={false}
                                    className={styles.tabs}
                                    activeKey={type}
                                    onChange={this.onSwitch}
                                >
                                    {TabChildren}
                                </Tabs>
                                {otherChildren}
                            </React.Fragment>
                        ) : (
                            children
                        )}
                    </Form>
                </div>
            </LoginContext.Provider>
        );
    }
}

Login.Tab = LoginTab;
Login.Submit = LoginSubmit;
Object.keys(LoginItem).forEach(item => {
    Login[item] = LoginItem[item];
});

export default Form.create()(Login);
